Lieutenant Colonel William "Bill" Ongena was an Belgian Air Force pilot and flew on F-104G starfighter. "Bill" Ongena was one of the few and the first to be able to perform a "Touch-Roll-Touch" in a F-104G. A maneuver deemed impossible even amongst F-104 test-pilots. Lieutenant Colonel Ongena unfortunately died in a car accident near Bierbeek after his active career in the Belgian Air Force.